90 days, determinate — The plants grow eighteen to twenty two inches in height with white flowers. The pods contain two seeds that are green with buff eyes and contain about 20% oil and 41% protein.
'Tengamine' is an edamame-type (pronounced "ed-uh-mah-may") that was obtained from Sakate Seed Company and in the USDA GRIN as ARS accession number PI 538410. It was originally collected in Shikoku, Japan and donated to the National Seed Storage Lab in 1986. Each packet contains 25 to 30 seeds.
Sow seeds about one inch deep, three to four inches apart. Although you can plant in rows, they can be planted densely and allowed to form a canopy. This will help control weed growth. Soybeans are tolerant of drought and poor soil since they fix nitrogen. They will, however, benefit from fertile soil.
Soybean flowers are perfect (self-fertile) and cross pollination is almost non-existent, making saving seed easy. Allow pods to fully develop and dry on the plants.
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